FR2441102A1 - PNEUMATIC SPRING - Google Patents

PNEUMATIC SPRING

Info

Publication number
FR2441102A1
FR2441102A1 FR7927395A FR7927395A FR2441102A1 FR 2441102 A1 FR2441102 A1 FR 2441102A1 FR 7927395 A FR7927395 A FR 7927395A FR 7927395 A FR7927395 A FR 7927395A FR 2441102 A1 FR2441102 A1 FR 2441102A1
Authority
FR
France
Prior art keywords
piston
piston rod
rod
retracted position
locking means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7927395A
Other languages
French (fr)
Other versions
FR2441102B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stabilus GmbH
Original Assignee
Stabilus GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stabilus GmbH filed Critical Stabilus GmbH
Publication of FR2441102A1 publication Critical patent/FR2441102A1/en
Application granted granted Critical
Publication of FR2441102B1 publication Critical patent/FR2441102B1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/56—Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
    • F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

CE RESSORT CONSTITUE PAR UN ENSEMBLE PISTON-TIGE COULISSANT DANS UN CYLINDRE REMPLI D'UN GAZ COMPRIME ET EVENTUELLEMENT D'UN LIQUIDE, EST MUNI DE DEUX PASSAGES A TRAVERS LE PISTON, DONT LE PREMIER EST OUVERT LORSQUE LA TIGE DE PISTON N'EST PAS PRES DE SA POSITION RETRACTEE ET DONT LE SECOND EST FERME PENDANT LA COURSE DE SORTIE DE LA TIGE DE PISTON, DES MOYENS DE BLOCAGE ETANT PORTES EN PARTIE PAR LE CYLINDRE ET EN PARTIE PAR L'ENSEMBLE PISTON-TIGE POUR FERMER LE PREMIER PASSAGE LORSQUE LA TIGE DE PISTON EST PRES DE SA POSITION RETRACTEE. IL EST CARACTERISE EN CE QUE LE MOYEN DE BLOCAGE PORTE PAR L'ENSEMBLE PISTON-TIGE EST UN ELEMENT 32 MUNI DE L'ORIFICE 66 DU PREMIER PASSAGE TOURNE A L'OPPOSE DE L'EXTREMITE DU CYLINDRE PAR LAQUELLE SORT LA TIGE DE PISTON, TANDIS QUE L'AUTRE MOYEN DE BLOCAGE EST UN ELEMENT D'OBTURATION 60 SOLLICITE AXIALEMENT PAR UN RESSORT 62 ET QUI FERME L'ORIFICE LORSQUE LA TIGE DE PISTON SE RAPPROCHE DE SA POSITION ENTIEREMENT RETRACTEE.THIS SPRING CONSTITUTES A PISTON-ROD ASSEMBLY SLIDING IN A CYLINDER FILLED WITH COMPRESSED GAS AND POSSIBLY WITH A LIQUID, IS EQUIPPED WITH TWO PASSAGES THROUGH THE PISTON, THE FIRST OF WHICH IS OPEN WHEN THE PISTON ROD IS NOT NEAR ITS RETRACTED POSITION AND THE SECOND OF WHICH IS CLOSED DURING THE EXIT STROKE OF THE PISTON ROD, LOCKING MEANS BEING PARTLY BY THE CYLINDER AND PARTLY BY THE PISTON-ROD ASSEMBLY TO CLOSE THE FIRST PASSAGE WHEN THE PISTON ROD IS NEAR ITS RETRACTED POSITION. IT IS CHARACTERIZED IN THAT THE LOCKING MEANS CARRIED BY THE PISTON-ROD ASSEMBLY IS AN ELEMENT 32 EQUIPPED WITH THE ORIFICE 66 OF THE FIRST PASS TURNED AGAINST THE END OF THE CYLINDER FROM WHICH THE PISTON ROD EXTENDS, WHEREAS THE OTHER LOCKING MEANS IS A BLOCKING ELEMENT 60 SOLICITED AXIALLY BY A SPRING 62 AND WHICH CLOSES THE ORIFICE WHEN THE PISTON ROD APPROACHES ITS ENTIRELY RETRACTED POSITION.

FR7927395A 1978-11-03 1979-10-31 PNEUMATIC SPRING Expired FR2441102B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782847728 DE2847728A1 (en) 1978-11-03 1978-11-03 GAS SPRING WITH EXTENDED EXTENSION FORCE WITH RETRACTED PISTON ROD

Publications (2)

Publication Number Publication Date
FR2441102A1 true FR2441102A1 (en) 1980-06-06
FR2441102B1 FR2441102B1 (en) 1986-05-09

Family

ID=6053789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927395A Expired FR2441102B1 (en) 1978-11-03 1979-10-31 PNEUMATIC SPRING

Country Status (5)

Country Link
US (1) US4307874A (en)
JP (1) JPS5565742A (en)
BR (1) BR7907138A (en)
DE (1) DE2847728A1 (en)
FR (1) FR2441102B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552191A1 (en) * 1983-09-16 1985-03-22 Fichtel & Sachs Ind Inc SEALING DEVICE FOR A FLUID SPRING
FR2552514A1 (en) * 1983-09-27 1985-03-29 Lucas France DAMPER OF THE FLUIDIC TYPE

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151070C2 (en) * 1981-12-23 1994-07-14 Stabilus Gmbh Safety gas spring for bonnets and / or trunk lids of motor vehicles
DE3437098C2 (en) * 1984-10-10 1995-01-26 Stabilus Gmbh Infinitely adjustable hydropneumatic device
CH670039A5 (en) * 1986-05-15 1989-05-12 Giroflex Entwicklungs Ag
DE3707158A1 (en) * 1987-03-06 1988-09-15 Stabilus Gmbh LOCKING DEVICE
US5050943A (en) * 1990-04-24 1991-09-24 Forma Scientific, Inc. Biological safety cabinet with window counterbalance
DE4236961A1 (en) * 1992-11-02 1994-05-05 Fichtel & Sachs Ag Fire protection for a vibration damper
US5462141A (en) * 1993-05-07 1995-10-31 Tayco Developments, Inc. Seismic isolator and method for strengthening structures against damage from seismic forces
IT1271059B (en) * 1993-11-19 1997-05-26 Stabilus Gmbh STOP DEVICE TO FIX TWO MOVABLE OBJECTS ONE RELATIVE TO THE OTHER
US6062352A (en) * 1998-08-24 2000-05-16 Piolax, Inc. Air damper
US7070028B2 (en) 2001-02-07 2006-07-04 Tenneco Automotive Operating Company Inc. Frequency dependent damper
KR100424888B1 (en) * 2001-11-19 2004-03-27 현대자동차주식회사 Gas lifter of tail gate for car
DE10236137B4 (en) * 2002-08-07 2010-05-06 Suspa Holding Gmbh spring strut
KR100494722B1 (en) * 2002-10-15 2005-06-13 현대자동차주식회사 Opening height auto-control apparatus of automobile tail gate
JP2006194283A (en) * 2005-01-11 2006-07-27 Nissan Motor Co Ltd Axial force generating device
DE102005056005A1 (en) * 2005-11-24 2007-06-06 Stabilus Gmbh adjustment
KR101035016B1 (en) * 2009-05-12 2011-05-17 주식회사 한국가스스프링 A gas-spring with a speed controller
DE102015121140A1 (en) * 2015-12-04 2017-06-08 Thyssenkrupp Ag Vibration damper with hydraulic damping of the pressure stage stop
DE102016123460A1 (en) * 2016-12-05 2018-06-07 Stabilus Gmbh Piston-cylinder unit
DE102016014779A1 (en) * 2016-12-10 2018-06-14 Hydac Technology Gmbh Hydropneumatic piston-cylinder arrangement
US11649873B1 (en) * 2022-01-26 2023-05-16 Thyssenkrupp Bilstein Of America, Inc. User-adjustable multi-stage shock absorbers
CN115788825B (en) * 2022-12-09 2023-06-02 广东凯普生物科技股份有限公司 Sustainable adsorption plunger pump and object moving and taking assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885654A (en) * 1974-04-05 1975-05-27 Ford Motor Co Deceleration device and valve mechanism
US3991863A (en) * 1973-06-22 1976-11-16 Integrated Dynamics Incorporated Metering shock absorber with manual adjustment
GB1547193A (en) * 1977-08-15 1979-06-06 Girling Ltd Telescopic suspension units for vehicles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1015327B (en) * 1955-01-27 1957-09-05 Suspa Federungstechnik G M B H Hydraulic telescopic vibration damper for vehicles
DE2516478C3 (en) * 1975-04-15 1978-12-07 Suspa-Federungstechnik Fritz Bauer & Soehne Ohg, 8503 Altdorf Gas spring
FR2334018A1 (en) * 1975-12-06 1977-07-01 Volkswagenwerk Ag SUPPORT DEVICE CONTAINING AT LEAST ONE FLUID UNDER PRESSURE AND INTENDED IN PARTICULAR FOR THE TAILGATE OF A VEHICLE
DE2619176C2 (en) * 1976-04-30 1982-10-21 Stabilus Gmbh, 5400 Koblenz Gas spring with no extension force when the piston rod is retracted
DE2653552C2 (en) * 1976-11-25 1982-06-09 Fritz Bauer + Söhne oHG, 8503 Altdorf Gas spring, which is designed as a lifting aid for opening and holding trunk lids or trunk lids of motor vehicles in the open position

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991863A (en) * 1973-06-22 1976-11-16 Integrated Dynamics Incorporated Metering shock absorber with manual adjustment
US3885654A (en) * 1974-04-05 1975-05-27 Ford Motor Co Deceleration device and valve mechanism
GB1547193A (en) * 1977-08-15 1979-06-06 Girling Ltd Telescopic suspension units for vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552191A1 (en) * 1983-09-16 1985-03-22 Fichtel & Sachs Ind Inc SEALING DEVICE FOR A FLUID SPRING
FR2552514A1 (en) * 1983-09-27 1985-03-29 Lucas France DAMPER OF THE FLUIDIC TYPE

Also Published As

Publication number Publication date
US4307874A (en) 1981-12-29
DE2847728A1 (en) 1980-05-14
BR7907138A (en) 1980-07-08
JPS6134009B2 (en) 1986-08-05
FR2441102B1 (en) 1986-05-09
DE2847728C2 (en) 1989-06-15
JPS5565742A (en) 1980-05-17

Similar Documents

Publication Publication Date Title
FR2441102A1 (en) PNEUMATIC SPRING
FR2376340A1 (en) LOCKABLE PNEUMATIC SPRING ACCORDING TO THE LOAD
FR2376341A1 (en) PNEUMATIC SPRING EQUIPPED WITH AN AUXILIARY LOCKING PISTON
SE7513930L (en) ADJUSTABLE PILLARS.
FR2412770A1 (en) AUTOMATICALLY OPERATED CHECK VALVE
FR2397530A1 (en) EXPLOSION MOTOR WITH VARIABLE VOLUMETRIC RATIO
FR2422869A1 (en) GAS ELASTIC DEVICE
FR2441751A1 (en) CYLINDER AND PISTON DEVICE
ES8203057A1 (en) Self-sealing actuating device for mounting on a discharge valve of a pressurized container.
CA2210842A1 (en) Pressurized device with a slit piece of compartmentalized material as means of pressurization
FR2444854A1 (en) GAS SPRING
FR2418356A1 (en) HYDRO-PNEUMATIC PISTON ACCUMULATOR EQUIPPED WITH A LACK OF GAS DETECTOR
FR2406760A1 (en) PERFECTION WITH A GAS SPRING
FR2410190A1 (en) PERFECTED PISTON FOR PNEUMATIC OR ANALOGUE SPRING
GB1161859A (en) A Stay for Lids and Doors.
NL6708641A (en)
FR2386748A1 (en) VALVE FOR HYDROPNEUMATIC ACCUMULATOR
FR2422889A1 (en) AUTOMATIC RELEASE REGULATION VALVE
FR2383856A1 (en) CONVEYOR
ES458878A1 (en) Casting receptacle or ladle for moulded castings or various materials
ES2080263T3 (en) AUTOMATIC UMBRELLA OPEN AND CLOSED THROUGH A DIRECT PUSH BUTTON.
CA2014031A1 (en) Pressure-medium-operated valve
UST993004I4 (en) Biasing unit for dispensing pump
ES234161U (en) Handy hypodermic injector
SE7710598L (en) MAGNETIC VALVE

Legal Events

Date Code Title Description
ST Notification of lapse